800879 has 2 divisors, whose sum is σ = 800880. Its totient is φ = 800878.

The previous prime is 800873. The next prime is 800897. The reversal of 800879 is 978008.

Together with next prime (800897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 800879 - 2⁸ = 800623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400439 + 400440.

It is an arithmetic number, because the mean of its divisors is an integer number (400440).

2⁸⁰⁰⁸⁷⁹ is an apocalyptic number.

800879 is a deficient number, since it is larger than the sum of its proper divisors (1).

800879 is an equidigital number, since it uses as much as digits as its factorization.

800879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 800879 is about 894.9184320372. The cubic root of 800879 is about 92.8657638657.

The spelling of 800879 in words is "eight hundred thousand, eight hundred seventy-nine".